131603767 has 2 divisors, whose sum is σ = 131603768. Its totient is φ = 131603766.

The previous prime is 131603761. The next prime is 131603777. The reversal of 131603767 is 767306131.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (767306131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131603767 - 2²³ = 123215159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131603761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65801883 + 65801884.

It is an arithmetic number, because the mean of its divisors is an integer number (65801884).

Almost surely, 2^131603767 is an apocalyptic number.

131603767 is a deficient number, since it is larger than the sum of its proper divisors (1).

131603767 is an equidigital number, since it uses as much as digits as its factorization.

131603767 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 34.

The square root of 131603767 is about 11471.8685051739. The cubic root of 131603767 is about 508.6543624294.

Adding to 131603767 its reverse (767306131), we get a palindrome (898909898).

The spelling of 131603767 in words is "one hundred thirty-one million, six hundred three thousand, seven hundred sixty-seven".